<template>
  <div>
    <!-- Header 区域 -->
    <van-nav-bar
      fixed
      title="文章详情"
      left-arrow
      @click-left="$router.back()"
    />
    <!-- 文章加载loading -->
      <van-loading color="#1989fa" class="loading" v-if="artObj.title === undefined">文章疯狂加载ing...</van-loading>
    <!-- 文章信息区域 -->
    <div class="article-container">
      <!-- 文章标题 -->
      <h1 class="art-title">{{ artObj.title }}</h1>

      <!-- 用户信息 -->
      <van-cell
        center
        :title="artObj.aut_name"
        :label="fromatDate(artObj.pubdate)"
      >
        <template #icon>
          <img :src="artObj.aut_photo" alt="" class="avatar" />
        </template>
        <template #default>
          <div>
            <van-button
              type="info"
              size="mini"
              v-if="artObj.is_followed"
              @click="followedFn(true)"
              >已关注</van-button
            >
            <van-button
              icon="plus"
              type="info"
              size="mini"
              plain
              v-else
              @click="followedFn(false)"
              >关注</van-button
            >
          </div>
        </template>
      </van-cell>

      <!-- 分割线 -->
      <van-divider></van-divider>

      <!-- 文章内容 -->
      <div class="art-content" v-html="artObj.content"></div>

      <!-- 分割线 -->
      <van-divider>End</van-divider>

      <!-- 点赞 -->
      <div class="like-box">
        <van-button
          icon="good-job"
          type="danger"
          size="small"
          v-if="artObj.attitude === 1"
          @click="loveFn(false)"
          >已点赞</van-button
        >
        <van-button
          v-else
          @click="loveFn(true)"
          icon="good-job-o"
          type="danger"
          plain
          size="small"
          >点赞</van-button
        >
      </div>
    </div>
    <!-- 文章评论部分 -->
   <div>
     <CommentList></CommentList>
   </div>
  </div>
</template>

<script>
import {
  detailAPI,
  userFollowedAPI,
  userUnFollowedAPI,
  articleLikeAPI,
  articleDisLikeAPI,
} from "@/api";
import { timeAgo } from "@/utils/date.js";
import CommentList from "./CommentList.vue"
export default {
  name:"ArticleDetail",
  async created() {
    const res = await detailAPI({
      artId: this.$route.query.aid,
    });
    console.log(res);
    this.artObj = res.data.data;
  },
  data() {
    return {
      artObj: {}, // 文章对象
    };
  },
  methods: {
    fromatDate: timeAgo,
    async followedFn(bool) {
      if (bool === true) {
        // 用户点击已关注按钮
        //取消关注,显示关注按钮
        this.artObj.is_followed = false;

        // 调用取消关注接口
        const res = await userUnFollowedAPI({
          userId: this.artObj.aut_id,
        });
      } else {
        this.artObj.is_followed = true;
        const res = await userFollowedAPI({
          userId: this.artObj.aut_id,
        });
      }
    },

    // 文章点赞/取消点赞
    async loveFn(bool) {
      if (bool === true) {
        // 用户点在了点赞按钮上
        // 业务 => 点赞文章
        // 显示 => 已点赞按钮
        this.artObj.attitude = 1;
        await articleLikeAPI({
          target: this.$route.query.aid,
        });
      } else {
        // 用户点在了已点赞按钮上
        // 业务 => 取消点赞文章
        // 显示 => 点赞按钮
        this.artObj.attitude = -1;
        await articleDisLikeAPI({
          artId: this.$route.query.aid,
        });
      }
    },
  },
  components:{
    CommentList
  }
};
</script>

<style scoped lang="less">
.article-container {
  padding: 10px;
  margin-top: 46px;
}
.loading {
  margin-top: 50px;
  text-align: center;
}
.art-title {
  font-size: 16px;
  font-weight: bold;
  margin: 10px 0;
}

.art-content {
  font-size: 12px;
  line-height: 24px;
  width: 100%;
  overflow-x: scroll;
  word-break: break-all;
  /deep/ img {
    width: 100%;
  }
  /deep/ pre {
    white-space: pre-wrap;
    word-wrap: break-word;
  }
}

.van-cell {
  padding: 5px 0;
  &::after {
    display: none;
  }
}

.avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #f8f8f8;
  margin-right: 5px;
  border: none;
}

.like-box {
  display: flex;
  justify-content: center;
}
</style>